IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 803 - 809 of 931
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Question 803
Question
MCQ▾A rectangular park 60 m long and 40 m wide has concreate crossroads running in the middle of the park and rest of the park has been used as a lawn. If the area of the lawn is 2109 sq. m, then what is the width of the road?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 3 m | |
b. | 4 m | |
c. | 6 m | |
d. | 5 m | |
Question 804
Question
MCQ▾Which number will replace the question mark?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 30 | |
b. | 24 | |
c. | 22 | |
d. | 26 | |
Question 805
Question 806
Question
MCQ▾The average of 9 numbers is 8. What should be added as 10th number to make the average 9?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 10 | |
b. | 90 | |
c. | 18 | |
d. | 72 | |
Question 807
Question
MCQ▾Two distinct ________ in a plane cannot have more than one point in common
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Points | |
b. | Lines and points | |
c. | Lines | |
d. | None of the above | |
Question 808
Question
MCQ▾The equation has________
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Only two solutions | |
b. | Only one solution | |
c. | Only three solutions | |
d. | Infinitely many solutions | |
Question 809
Question
MCQ▾Which number should come in place of the question mark?
| 14 | 18 | 12 |
| 5 | 3 | 5 |
| 5 | 7 | ? |
| 75 | 61 | 69 |
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 4 | |
b. | 9 | |
c. | 6 | |
d. | 7 | |